David Greene
f1355a55f8
Update InvokeInst to work like CallInst
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41506 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 19:04:21 +00:00
Rafael Espindola
44c8265cf8
Add a comment about using libc memset/memcpy or generating inline code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41502 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 17:48:26 +00:00
Dan Gohman
e9c8fa095e
Make DAGCombiner's global alias analysis query more precise in the case
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where both pointers have non-zero offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41491 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 16:32:11 +00:00
Dan Gohman
5f43f92c69
If the source and destination pointers in an llvm.memmove are known
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to not alias each other, it can be translated as an llvm.memcpy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41489 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 16:26:13 +00:00
Dan Gohman
e3784951af
Change comments to refer to @malloc and @free instead of %malloc and %free.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41488 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 16:11:48 +00:00
Duncan Sands
6590b0457c
There is an impedance matching problem between LLVM and
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gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target. We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require. I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!). Instead we need
to append a full-blown catch-all to the end of each
selector. The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc. Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos. Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 15:47:50 +00:00
Dan Gohman
81975f6dfd
Add explicit keywords and remove spurious trailing semicolons.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41482 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 14:50:10 +00:00
Rafael Espindola
6b83b5d1ae
call libc memcpy/memset if array size is bigger then threshold.
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Coping 100MB array (after a warmup) shows that glibc 2.6.1 implementation on
x86-64 (core 2) is 30% faster (from 0.270917s to 0.188079s)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41479 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 10:18:20 +00:00
Anton Korobeynikov
9f528e6280
Don't promote volatile loads/stores. This is needed (for example) to handle setjmp/longjmp properly.
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This fixes PR1520.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41461 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-26 21:43:30 +00:00
Owen Anderson
5dfcf4318a
Don't DSe volatile stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41456 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-26 21:14:47 +00:00
Dale Johannesen
e6c1742914
Revise per review comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41409 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-26 01:18:27 +00:00
Dale Johannesen
87503a63d5
Add APFloat interface to ConstantFPSDNode. Change
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over uses in DAGCombiner. Fix interfaces to work
with APFloats.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41407 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 22:10:57 +00:00
Devang Patel
d79faee69a
Move exit condition and exit branch from exiting block into loop header and dominator info. This avoid execution of dead iteration. Loop is already filter in the beginning such that this change is safe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 02:39:24 +00:00
Devang Patel
be97c986e1
Constant split values needs upper bound and lower bound check, just like any other split value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41389 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 01:09:14 +00:00
Chris Lattner
09ec1b0583
Allow target constants to be illegal types. The target should
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know how to handle them. This fixes
test/CodeGen/Generic/asm-large-immediate.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41388 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 01:00:22 +00:00
Devang Patel
4a69da9cb0
While calculating upper loop bound for first loop and lower loop bound for second loop, take care of edge cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41387 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 00:56:38 +00:00
Chris Lattner
7df31dc89b
Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41386 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 00:53:07 +00:00
Bill Wendling
cf4bb317ef
The personality function might need to be declared as:
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.set Lset0,___gxx_personality_v0-.
.long Lset0
on some targets. Make it so!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41385 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 00:51:55 +00:00
Chris Lattner
48884cd80b
rename isOperandValidForConstraint to LowerAsmOperandForConstraint,
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changing the interface to allow for future changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25 00:47:38 +00:00
Dale Johannesen
12595d7b16
Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
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This means backing out the preceding change to Constants.cpp, alas.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41378 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 22:09:56 +00:00
Dale Johannesen
8bb369b807
Use APFloat internally for ConstantFPSDNode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41372 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 20:59:15 +00:00
Chris Lattner
cd406fe123
sink clone() down the class hierarchy from CmpInst into ICmpInst/FCmpInst.
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This eliminates a conditional on that path, and ensures ICmpInst/FCmpInst
both have an out-of-line virtual method to home the class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41371 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 20:48:18 +00:00
Devang Patel
7097e9a710
Fix regression that I caused yesterday night while adding logic to select appropriate split condition branch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41365 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 19:32:26 +00:00
Chris Lattner
90e167a908
Disable EH generation until PPC works 100%.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41360 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 16:00:15 +00:00
Chris Lattner
b23f4c5f44
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41359 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 15:17:59 +00:00
Devang Patel
4259fe3281
It is not safe to execute split condition's true branch first all the time. If split
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condition predicate is GT or GE then execute false branch first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41358 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 06:17:19 +00:00
Devang Patel
c830aee8e8
Reject ICMP_NE as index split condition.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41357 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 06:02:25 +00:00
Devang Patel
b88e4200cf
Tightenup loop filter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41356 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 05:36:56 +00:00
Devang Patel
7237d1167a
Remove incomplete cost analysis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41354 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 05:21:13 +00:00
Dale Johannesen
d3b51fd170
Revised per review feedback from previous patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 05:08:11 +00:00
Chris Lattner
ada530b4f5
silence some warnings in an optimized build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 03:02:34 +00:00
Dale Johannesen
343e770983
Change internal representation of ConstantFP to use APFloat.
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Interface to rest of the compiler unchanged, as yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41348 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24 00:56:33 +00:00
Chris Lattner
9e43d6316f
add some notes on really poor codegen.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41319 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23 15:22:07 +00:00
Chris Lattner
aabd0359a3
new example
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41318 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23 15:16:03 +00:00
Anton Korobeynikov
2f597bd09e
Perform correct codegen for eh_dwarf_cfa intrinsic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41316 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23 07:21:06 +00:00
Chris Lattner
9132a2b818
rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned()
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Add an APSInt::toString() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41309 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23 05:15:32 +00:00
Devang Patel
40fc353a0d
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41295 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 21:07:41 +00:00
Devang Patel
a24d918063
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41292 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 20:55:18 +00:00
Devang Patel
a8644e306d
Cosmetic change
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"True Loop" and "False Loop" naming terminology to refer two loops
after loop cloning is confusing. Instead just use A_Loop and B_Loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41287 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 19:33:29 +00:00
Andrew Lenharth
b753a9bb62
move this check. ppc outputs .no_dead_strip properly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41286 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 19:33:11 +00:00
Bill Wendling
adbda021e7
Add the PCSymbol for Darwin x86 platforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41284 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 18:44:05 +00:00
Devang Patel
dc52395353
Refactor loop condition check in a separate function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41282 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 18:27:01 +00:00
Devang Patel
ea0fa97334
Fix thinko.
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Starting value of second loop's induction variable can not be lower
then starting value of original loop's induction variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41280 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22 18:07:47 +00:00
Devang Patel
0b8e02b704
Rename bunch of variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41250 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 21:12:02 +00:00
Devang Patel
60cbab4252
Preserve LCSSA.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41246 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 19:47:46 +00:00
Devang Patel
e79bad66e0
Use SmallVector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41230 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 16:54:51 +00:00
Devang Patel
7c6c55db4d
No need to hardcode SmallVector size.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41228 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 16:39:43 +00:00
Bruno Cardoso Lopes
84f47c52fd
InlineAsm asm support for integer registers added
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41225 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 16:09:25 +00:00
Bruno Cardoso Lopes
edeede2bb5
Instruction Itinerary attribution fixed
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41224 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 16:06:45 +00:00
Chris Lattner
5498405e2d
Fix potentially N^2 behavior handling arrays with many of the
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same value which get RAUW'd. This speeds up reading the .bc
file in PR1616 from 852s to 0.19s on my G5 with a debug build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41209 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21 00:55:23 +00:00